{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897877,-0.440246,0.000000,0.000000,0.282625,-0.576409,0.766731,0.000000,-0.336614,0.686519,0.644502,0.000000,-2149959.335707,4384814.630941,4088890.956563,1],    "boundingVolume": {    "region": [2.026606,0.700337,2.026733,0.700406,0.000000,33.682253]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/3_852512.b3dm"}}}